Home / 19,619.15-29,441.57-11,715.75

Finding the Fourth Proportional to 19,619.15, 29,441.57 and 11,715.75

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Solution

The fourth proportional to 19,619.15, 29,441.57 and 11,715.75 is: 17,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.15 : 29,441.57 = 11,715.75 : x
  2. Step 2: Convert to fraction form
    19,619.15/29,441.57 = 11,715.75/x
  3. Step 3: Cross multiply
    19,619.15x = 29,441.57 × 11,715.75
  4. Step 4: Simplify right side
    19,619.15x = 344,930,015.15
  5. Step 5: Solve for x
    x = 344,930,015.15/19,619.15
  6. Step 6: Final answer
    x = 17,581.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.